PHP. Руководство по PHP. 2005

yaz_ccl_parse

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yaz_ccl_parse

(PHP 4 >= 4.0.5, PECL)yaz_ccl_parse -- Invoke CCL Parser

Описание

bool yaz_ccl_parse (resource id, string query, array &result)

This function invokes a CCL parser. It converts a given CCL FIND query to

an RPN query which may be passed to the yaz_search()

function to perform a search.

To define a set of valid CCL fields call yaz_ccl_conf()

prior to this function.

Список параметров

id

The connection resource returned by yaz_connect().

query

The CCL FIND query.

result

If the function was executed successfully, this will be an array

containing the valid RPN query under the key rpn.

Upon failure, three indexes are set in this array to indicate the cause

of failure:

errorcode - the CCL error code (integer)

errorstring - the CCL error string

errorpos - approximate position in query of failure

(integer is character position)

Возвращаемые значения

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.

Примеры

Пример 1. CCL Parsing

We will try to search using CCL. In the example below,

$ccl is a CCL query.


<?php

yaz_ccl_conf($id, $fields); // see example for yaz_ccl_conf
if (!yaz_ccl_parse($id, $ccl, &$cclresult)){
echo 'Error: ' . $cclresult["errorstring"];
} else {
$rpn = $cclresult["rpn"];
yaz_search($id, "rpn", $rpn);
}
?>

yaz_ccl_conf

yaz_close

Отвечу на любые вопросы. С уважением, Дмитрий Владимирович.

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